Transmission drive for speedometers and the like



July 3, 1923. 1,460,523

F. G. WHITTINGTON TRANSMISSION DRIVE FOR STEEDOFTETERS AND THE LIKE Filed April 5, 1922 Patented July 3, 1923.

FBEDEBIK G. WHITTINGTON, OF EVANSTGN, ILLINOIS. ASSIGNQR TO STEWABTWAR- HEB SPEEDOMETER CORPORATION, OF CHICAGO. ILLINOIS, A CORPORATION OF VIRGINIA.

TRANSMISSION DRIVE FOR SPEEDOMETEBS AND THE LIKE.

Application flied April 8, 1922.

To all whom it may cmlcem:

Be it known that l, FEEDER; G. W'nlr TINGTON, a citizen of the United States, hav ing residence in llvanston. in the county of Cook and the State of Illinois. have invented certain new and useful Improvements in Transmission Drives for Speedonn-teis and the like, of which the following is it specification, reference being bad to the uccouipanying drawings. forming a. part thereof.

The purpose of this invention is to provide an improved construction of transmission drive connections for u speedometer or other instrument carried on an automotive vehicle. It consists in the elements and features of rmistruction shown and described, as indicated in the claims.

In the drawing Figure l is 0. section axial with respect to two shafts shown therein. through one wall of the transmission casing. and :1 supple mental housing member mounted thereon. embodying the features of this invention.

Figure 2 is n fut-c elevation of the supplemental housing member shown in Figure 1.

Figure 25 is u VltW similar to Figure 1, showing the supplemental housing adjusted for accommodating and containi a pair of interniesl'iing gears on SlITlllHI LfiBmBlPIS from those shown in Figure 1.

Figure 4 is a section at the line, 44, on Figures 1 and 2.

The drawings show one wall of the transmission case, A. in which there is a loreand-aft propeller shaft indicated in eneral as to its direction at B, and in which there is journeled a driven shaft shown at C in one of its bearings provided by bushings, C in the wall of the transmission casing,

A. D and E are two members of n. supplemental genr housing which is mounted upon the outer face of the wall of the transmission casing. A for swiveling about the axis of the shalt, as indicated by the annular rabbet engagement of the member. I). on said supplemental housing. with the transrnission casing wall at (i. This supplement 111 housing member. l beside ring seated at the engaged z'n'obets. as shown. iurninst the transmission :HFP. Well. is scoured to th triinsnnssior ca in b :a b lt. d. d. hon tie-Inn! Hm i pp sit ly pi'Htl 'HliHL hi5.

l l Rui'l housing; irr r er bring dt-ua uutnble on ih-i Serial No. 549,!93.

casin by withdrawing the nuts, '1', free said olts; and said housing member the range of these Slots transversely with respect to the axis of the shalt, L. This adjustment is provided in view of the jouruulinp in said cover member. E. in a our imlin; boss. '1. of a driven shaft. H. which at its inner end protrudes into the housing chamber. and at its outer end is ada )ted. as shown at /I. lor coupling with a shalt, l. to e driven llllll'll being the rotating incur be! of a flexible slmft whose casing member. i is iidiiplrd to be secured tightly in said swivel bos by the splitting: of said boss It; soon at e. providing it, with lugs e. e. at oppositisides of the split which are clumped together by :1 olt. 0"". to grip the flexible shalt casing. Li ()n the protruding end of the shaft 13. within the supplenn-ntul housing. and on he intruded end of the shaft. l, within said housing there are demountably mounted intermcshingz gears. h and (i. respectively, by which rotation is transmitted from the shaft. B, to the flexible shaft connection. us described for driving the speedometer.

It will be understood from the foregoin; description that the entire supplemental housing is designed to be mounted project ing in either lateral direction from the shaft. B. according to whether the speedouu ter or other instrument to be driven is located at one side or the other of the vehicle.

It. will also be understood that for ub stituting gears. ('1 and F. of different ii simelcrs from those which may be in our instuuce PIHPlOjJPtl. the rover Enemies E. uould be detach d and the proper o Eb stituted on the p otrudin and p fo rudwi rods of hafts. C and H. and tire cover lllt fi l r-v zipplicrl and ml ust d longitudir-wziv in {hr l tted bolt hol nwonling to the wpiirement of th sum of flu il' nmelcm of the two gems substituted I claim 1. In combination with a transmission easing and a power shaft jourualed therein and protruding at one end therefrom; a supplemental gear housing mounted against the outer side of the frame enclosing said protruded shaft; a cover plate for said housing mounted slidahly on the supplemental housing; a driven shaft journaled in said eorer plate intruding at one end into the housing ehamber, and aeeessible at the other end for eouplin. and a pair of internieshing gears demountably mounted on said protruding JIM] intruding shaft ends respeetiretn 24 In rouibination with the transmission easing. a power-driven shaft jourualed therein and protruding at one end therefrom: a supplemental gear housing mounted against the outer side of said easing enclosing said u-otruding shaft: a tfUYtl member for said musing mounted slidahly on said supple mental housing and means for seeuring it at any position within the range of its slidabilit): a driven shaft journaled in said rover member intruding at one end into the housing ehamber, and aeeessible at the outer end for eoupling. and a pair of intermeshing gears demountably mounted on said protruding and intruding shaft ends respectively; whereby said interineshing gears in the housing may be readily replaced by the gears of ditferent diameters for varying the speed transmitted to said driven shaft.

3. In combination with the. transmission easing and a foreandaftpower shaft jonr naled therein and protruding at one end therefrom, a supplemental gear housing swiveled against the case about the axis of said protruding shaft, and provided with means for seeuring it rigidly to the ease at a plurality of positions about said axis; a gear on a protruding end of said shaft within said supplemental gear housing; a driven shaft journaled in said supplemental gear housing and intruding at one end into the housing ehamher. and aeeessihle at the outer end for impling. and a pair of intermeshing gears in said supplemental housing on said protruding and intruding shaft heads respectirely.

4. In combination with the transmission easing and a power shaft journaled therein and protruding at one end therefrom. a supplemental gear housing swireled about the axis of said protruding shaft; and provided with means for seenring it rigidly to the ease at a plurality of positions about said axis: a eurttl' member for said supplemental housing mounted slidahh thereon; a driven shaft jonrnaled in said eorer nrelnher and intruding at one endinto the housing eha1nher and aeeessihle at the other end for coupling, and a pair of intermeshing gears, deniountahly mounted on said protruding and intruding shafts respeetirely in the housing chamber.

In testimony whereof I have hereunto set my hand at Chicago, Illinois, this 30th day of March, 1922.

FREDEHIK (t. WHITTINGTON. 

